Improved lasting-machine



@anni damit.

KARL GRASSAU, 0F VIRGINIA CITY, NEVADA.

Letters Patent No. 101,456, (lated April 5, 1870.

IMPROVED LASTING-MACHINE.

The Schedule referred to in these Letters Patent and making part of thesame To all whom it may concern Beit known that I, KARL GRAssAU, ofVirginia City, county of Storey, State of Nevada, have invented a'nImproved Boot -and Shoe Lasting Machine; and I do hereby declare thefollowing description and accompanying drawings are sufficient to enableany person skilled in the art or science to which it most nearlyappertains, to make and use my said invention and improvements withoutfurther inven-` v made' to the accompanying drawings and letters ofreference marked thereon.

A is a strong arm or bar bent as shown, and fastened to the last throughthe insole B by nails a a.

The part of the bar 'which rests on the sole, is grooved, so as toreceive the sliding end (l of the toe clamp C, and guide it in itsmovements forward and back.

This clamp is moved by a screw, D, which works through the bar A, andturns in the standard L, having a shoulder to prevent its advance orretreat without moving the standard.

The two clamps E E at the sides of the ball of the foot arel hinged bymeans of extended arms e to a central nut, F, which is out-side the barA, and is moved together with the clamps E toand from the sole by ascrew, G, operating through the nut F.

The clamps H H, which draw the leather over the instep, are attached tothe bar A in .a manner similar to the clamps E by arms f.

Through the arms c and f are screws I and J, with nuts which serve tobling the clamps nearer together, and so stretch the leather as much asdesired.

The clamps are all constructed with a movable and a fixed jaw, the fixedjaw being a part ofthe bars d, o, and f respectively, and a screw-boltthrough these and the movable jaws serves to operate the latter.

The inner surfaces of the jaws are roughened, so that they will hold theleather rmly.

The operation of my machine is as follows:

The insole is placed uponthe last, and the bar A is fastened to the lastby the pins a a. The upper leather is then clamped by the jaw C, and thescrew D turned so as to draw it down tight over 'the toe of the last.The leather is then seized by the clamps E E at the sides ofthe ball ofthe foot, and the screw G is turned so as to draw the leather beyond theedges ofthe sole. This being accomplished, the nut on the screw I isturned and the leather drawn together under the sole. The counter isthen drawn down to its place, and the clamps H H adjusted to theleather, and the nut on the screw J moved so as to draw the leatherunder the sole, when it. is ready to be stitched.

Having thus described my invention,

What I claim as new, and desire' to secure by Letters Patent, is

l. The combination o f the clamp C, provided with i the standard L, withthe screw D and bar A, arranged to operate substantially as described.

2. Iu combination with the clamps E, the bar A, so constructed as toform a point of' support for the screw G, substantially as described.

In witness whereof I hereunto set my hand and seal. v

Witnesses: KARL GRASSAU. [L. s.]

C. O. BUTLER, F. PAILLON.

